// ** React Imports
import { useState, SyntheticEvent, Fragment, useEffect } from 'react'

// ** Next Import
import { useRouter } from 'next/router'

// ** MUI Imports
import Box from '@mui/material/Box'
import Menu from '@mui/material/Menu'
import Badge from '@mui/material/Badge'
import Avatar from '@mui/material/Avatar'
import Divider from '@mui/material/Divider'
import MenuItem from '@mui/material/MenuItem'
import { styled } from '@mui/material/styles'
import Typography from '@mui/material/Typography'

// ** Icons Imports
import CogOutline from 'mdi-material-ui/CogOutline'
import CurrencyUsd from 'mdi-material-ui/CurrencyUsd'
import EmailOutline from 'mdi-material-ui/EmailOutline'
import LogoutVariant from 'mdi-material-ui/LogoutVariant'
import AccountOutline from 'mdi-material-ui/AccountOutline'
import MessageOutline from 'mdi-material-ui/MessageOutline'
import HelpCircleOutline from 'mdi-material-ui/HelpCircleOutline'

import { useUser } from '@auth0/nextjs-auth0/client'

// ** Styled Components
const BadgeContentSpan = styled('span')(({ theme }) => ({
  width: 8,
  height: 8,
  borderRadius: '50%',
  backgroundColor: theme.palette.success.main,
  boxShadow: `0 0 0 2px ${theme.palette.background.paper}`
}))

const UserDropdown = () => {
  const { user, isLoading } = useUser();

  const [appUser, setAppUser] = useState(null);

  useEffect(() => {
    getData()
  }, []);

  const getData = async () => { 
    var userResponse = await fetch('/api/me');
    var user = await userResponse.json();
    setAppUser(user); 
  }
  // ** States
  const [anchorEl, setAnchorEl] = useState<Element | null>(null)

  // ** Hooks
  const router = useRouter()

  const handleDropdownOpen = (event: SyntheticEvent) => {
    setAnchorEl(event.currentTarget)
  }

  const handleDropdownClose = (url?: string) => {
    if (url) {
      router.push(url)
    }
    setAnchorEl(null)
  }

  const styles = {
    py: 2,
    px: 4,
    width: '100%',
    display: 'flex',
    alignItems: 'center',
    color: 'text.primary',
    textDecoration: 'none',
    '& svg': {
      fontSize: '1.375rem',
      color: 'text.secondary'
    }
  }

  return (
    (!isLoading && user && appUser) ? (
      <Fragment>
        <Badge
          overlap='circular'
          onClick={handleDropdownOpen}
          sx={{ ml: 2, cursor: 'pointer' }}
          badgeContent={<BadgeContentSpan />}
          anchorOrigin={{ vertical: 'bottom', horizontal: 'right' }}
        >
          <Avatar
            alt={user.nickname}
            onClick={handleDropdownOpen}
            sx={{ width: 40, height: 40 }}
            src={user.picture}
          />
        </Badge>
        <Menu
          anchorEl={anchorEl}
          open={Boolean(anchorEl)}
          onClose={() => handleDropdownClose()}
          sx={{ '& .MuiMenu-paper': { width: 230, marginTop: 4 } }}
          anchorOrigin={{ vertical: 'bottom', horizontal: 'right' }}
          transformOrigin={{ vertical: 'top', horizontal: 'right' }}
        >
          <Box sx={{ pt: 2, pb: 3, px: 4 }}>
            <Box sx={{ display: 'flex', alignItems: 'center' }}>
              <Badge
                overlap='circular'
                badgeContent={<BadgeContentSpan />}
                anchorOrigin={{ vertical: 'bottom', horizontal: 'right' }}
              >
                <Avatar alt={appUser["displayName"]} src={user.picture} sx={{ width: '2.5rem', height: '2.5rem' }} />
              </Badge>
              <Box sx={{ display: 'flex', marginLeft: 3, alignItems: 'flex-start', flexDirection: 'column' }}>
                <Typography sx={{ fontWeight: 600 }}>{appUser["displayName"]}</Typography>
                <Typography variant='body2' sx={{ fontSize: '0.8rem', color: 'text.disabled' }}>
                  Welcome back!
                </Typography>
              </Box>
            </Box>
          </Box>
          <Divider sx={{ mt: 0, mb: 1 }} />
          <MenuItem sx={{ p: 0 }} onClick={() => router.push("/dashboard/settings")}>
            <Box sx={styles}>
              <CogOutline sx={{ marginRight: 2 }} />
              Settings
            </Box>
          </MenuItem>
          <Divider />
          <MenuItem sx={{ py: 2 }} onClick={() => handleDropdownClose('/api/auth/logout')}>
            <LogoutVariant sx={{ marginRight: 2, fontSize: '1.375rem', color: 'text.secondary' }} />
            Logout
          </MenuItem>
        </Menu>
      </Fragment>
    ): null
  )
}

export default UserDropdown